Evidence map›Paper›PMID 27278241›Full record

ArticleJournal of nanobiotechnology2016

Development of an ultra-high sensitive immunoassay with plasma biomarker for differentiating Parkinson disease dementia from Parkinson disease using antibody functionalized magnetic nanoparticles.

Shieh-Yueh Yang, Ming-Jang Chiu, Chin-Hsien Lin, Herng-Er Horng, Che-Chuan Yang, Jen-Jie Chieh, Hsin-Hsien Chen, Bing-Hsien Liu

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Journal of nanobiotechnology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.7field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

29 citing papers in PubMed, 71 citations in OpenAlex.

  1. Trial
  2. Review
  3. Antibody-Empowered Nanomedicine for Precise Biomedical Applications.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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  14. Synergistic Association between Plasma AβACS chemical neuroscience · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Shieh-Yueh YangMagQu Co., Ltd., Xindian District, New Taipei City, 231, Taiwan. syyang@magqu.com.
Ming-Jang ChiuDepartment of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, 100, Taiwan.
Chin-Hsien LinDepartment of Neurology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, 100, Taiwan.
Herng-Er HorngInstitute of Electro-optical Science and Technology, National Taiwan Normal University, Taipei, 116, Taiwan.
Che-Chuan YangMagQu Co., Ltd., Xindian District, New Taipei City, 231, Taiwan.
Jen-Jie ChiehInstitute of Electro-optical Science and Technology, National Taiwan Normal University, Taipei, 116, Taiwan.
Hsin-Hsien ChenMagQu Co., Ltd., Xindian District, New Taipei City, 231, Taiwan.
Bing-Hsien LiuMagQu Co., Ltd., Xindian District, New Taipei City, 231, Taiwan.
National Taiwan Normal University · TWNational Taiwan University · TWNational Taiwan University Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIt is difficult to discriminate healthy subjects and patients with Parkinson disease (PD) or Parkinson disease dementia (PDD) by assaying plasma α-synuclein because the concentrations of circulating α-synuclein in the blood are almost the same as the low-detection limit using current immunoassays, such as enzyme-linked immunosorbent assay. In this work, an ultra-sensitive immunoassay utilizing immunomagnetic reduction (IMR) is developed. The reagent for IMR consists of magnetic nanoparticles functionalized with antibodies against α-synuclein and dispersed in pH-7.2 phosphate-buffered saline. A high-Tc superconducting-quantum-interference-device (SQUID) alternative-current magnetosusceptometer is used to measure the IMR signal of the reagent due to the association between magnetic nanoparticles and α-synuclein molecules.

resultsAccording to the experimental α-synuclein concentration dependent IMR signal, the low-detection limit is 0.3 fg/ml and the dynamic range is 310 pg/ml. The preliminary results show the plasma α-synuclein for PD patients distributes from 6 to 30 fg/ml. For PDD patients, the concentration of plasma α-synuclein varies from 0.1 to 100 pg/ml. Whereas the concentration of plasma α-synuclein for healthy subjects is significantly lower than that of PD patients.

conclusionsThe ultra-sensitive IMR by utilizing antibody-functionalized magnetic nanoparticles and high-Tc SQUID magnetometer is promising as a method to assay plasma α-synuclein, which is a potential biomarker for discriminating patients with PD or PDD.

Indexed as

AdultAgedalpha-SynucleinAntibodies, ImmobilizedBiomarkersDementiaFemaleHumansImmunoassayLimit of DetectionMagneticsMagnetite NanoparticlesMaleMiddle AgedParkinson Diseasealpha-SynucleinAntibodies, ImmobilizedBiomarkersMagnetite NanoparticlesImmunomagnetic reductionParkinson diseaseα-synuclein

Identifiers

PMID27278241
PMCPMC4898388
OpenAlexW2408989194

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.